Nico Medina Books

Who was Leif Erikson?

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"Hold on to your Viking helmets as you learn about the first known European to set foot on North America in this exciting addition to the Who Was? Series! Leif Erikson was born to be an explorer. H...

Everest Dagi Ne Nerede Serisi

By Nico Medina

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Where Is Alcatraz

By David Groff, Nico Medina, Who HQ

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Who Was Julius Caesar?

By Tim Foley, Nico Medina, Who HQ

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He came. He saw. He conquered. Julius Caesar was a force to be reckoned with as a savvy politician, an impressive orator, and a brave soldier. Born in Rome in 100 BC, he quickly climbed the ladder...

Who Was Genghis Khan?

By Nico Medina, Andrew Thomson, Who HQ

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Named Temujin at birth by his nomadic family in early Mongolia, the great Genghis Khan used his skill and cunning to create the Mongol Empire and conquer almost the entire continent of Asia. As rul...

Who Is RuPaul?

By Nico Medina, Andrew Thomson, Who HQ

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Learn how this Emmy-winning host, producer, and television personality became the world's most famous drag queen.RuPaul Andre Charles always knew he was meant to be a performer. Even as a young ch...

Who Is RuPaul?

By Nico Medina, Andrew Thomson, Who HQ

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Learn how this Emmy-winning host, producer, and television personality became the world's most famous drag queen.RuPaul Andre Charles always knew he was meant to be a performer. Even as a young ch...

What Were the Shark Attacks of 1916?

By Tim Foley, Nico Medina, Who HQ

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The panic-filled summer of 1916, when multiple deadly shark attacks shocked the nation, is chronicled in this gripping addition to the New York Times Best-Selling What Was? series.On July 1, 1916,...

What Were the Shark Attacks of 1916?

By Tim Foley, Nico Medina, Who HQ

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The panic-filled summer of 1916, when multiple deadly shark attacks shocked the nation, is chronicled in this gripping addition to the New York Times Best-Selling What Was? series.On July 1, 1916,...

What Was World War I?

By Dede Putra, Nico Medina, Who HQ

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This compelling addition to the What Was? series covers what was supposed to be “the war to end all wars” but tragically wasn't.In 1914, the assassination of an Austrian archduke set of...

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.